<template>
	<div>
		<!-- 面包屑导航区域 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>商品管理</el-breadcrumb-item>
		  <el-breadcrumb-item>商品分类</el-breadcrumb-item>
		</el-breadcrumb>
		
		<!-- 卡片视图区域 -->
		<el-card>
		  <el-row :gutter="20">
			<!-- 搜索框 -->
		    <el-col :span="8">
		      <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
		        <el-button @click="getGoodsList" slot="append" icon="el-icon-search"></el-button>
		      </el-input>
		    </el-col>
			<!-- 按钮 -->
			<el-col :span="4">
			  <el-button type="primary" @click="goAddPage">添加商品</el-button>
			</el-col>
		  </el-row>
		  
		  <!-- 表格区域 -->
		  <el-table :data="goodslist" border stripe>
			  <el-table-column type="index"></el-table-column>
			  <el-table-column label="商品名称" prop="goods_name"></el-table-column>
			  <el-table-column label="商品价格" prop="goods_price" width="95px"></el-table-column>
			  <el-table-column label="商品重量" prop="goods_weight"width="70px"></el-table-column>
			  <el-table-column label="创建时间" prop="add_time" width="170px">
				  <template slot-scope="scope">
					  {{scope.row.add_time | dateFormat}}
				  </template>
			  </el-table-column>
			  <el-table-column label="操作">
				  <template slot-scope="scope">
				    <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeById(scope.row.goods_id)">删除</el-button>
				  </template>
			  </el-table-column>
		  </el-table>
		  
		  <!-- 分页区域 -->
		  <el-pagination
		        @size-change="handleSizeChange"
		        @current-change="handleCurrentChange"
		        :current-page="queryInfo.pagenum"
		        :page-sizes="[5, 10, 15, 20]"
		        :page-size="queryInfo.pagesize"
		        layout="total, sizes, prev, pager, next, jumper"
		        :total="total" background>
		  </el-pagination>
		  
		</el-card>
	</div>
</template>

<script>
	export default {
		data() {
			return {
				//查询参数对象
				queryInfo: {
					query: '',
					pagenum: 1,
					pagesize: 10
				},
				//数据数组
				goodslist: [],
				//总数
				total: 0
			}
		},
		created() {
			this.getGoodsList()
		},
		methods: {
			//获取商品列表数据
			async getGoodsList() {
				const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
				
				if (res.meta.status !== 200) {
				  return this.$message.error('获取商品分类失败！')
				}
				
				console.log(res.data)
				// 把数据列表，赋值给 goodslist
				this.goodslist = res.data.goods
				// 为总数据条数赋值
				this.total = res.data.total
			},
			//每页的数量设置
			handleSizeChange(newSize) {
				this.queryInfo.pagesize = newSize
				this.getGoodsList()
			},
			//页码设置
			handleCurrentChange(newPage) {
				this.queryInfo.pagenum = newPage
				this.getGoodsList()
			},
			
			//删除按钮
			async removeById(id) {
				const confirmResult = await this.$confirm(
				  '此操作将永久删除该参数, 是否继续?',
				  '提示',
				  {
				    confirmButtonText: '确定',
				    cancelButtonText: '取消',
				    type: 'warning'
				  }
				).catch(err => err)
				
				// 用户取消了删除的操作
				if (confirmResult !== 'confirm') {
				  return this.$message.info('已取消删除！')
				}
				
				// 删除的业务逻辑
				const { data: res } = await this.$http.delete(`goods/${id}`)
				if (res.meta.status !== 200) {
				  return this.$message.error('删除参数失败！')
				}
				
				this.$message.success('删除参数成功！')
				this.getGoodsList()
			},
			
			//点击添加商品
			goAddPage() {
				//跳转路由
				this.$router.push('/goods/add')
			}
		}
	}
</script>

<style lang="less" scoped>
	
</style>
